Tool holder



FIG. 1 is a front perspective view of the tool holder showing the design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a front perspective view thereof showing the attachment devices detached. 

The ornamental design for a tool holder, as shown and described. 